The JG Speedfit underfloor heating pipe available from Trading Depot is all 'Layflat' pipe meaning it is more flexible than alternative PEX pipe. It is made from polybutylene and has an inner barrier to prevent air getting into the system. It is available in 25m, 50m, 100m,120m,150m and 300m coils. Please note that for underfloor heating Speedfit recommend a maximum circuit length of 100 metres which would typically cover around 15 -20m2